/*旋转木马必要样式*/
.poster-main{ position:relative;width:500px;height:270px;}
.poster-main a,.poster-main img{display:block; height: 100%; width:100%;}
.poster-main .poster-list{width:500px;height:270px;}
.poster-main .poster-list .poster-item{ position:absolute;left:0;top:0;}
.poster-main .poster-btn{ position:absolute;top:0;width:100px;height:270px; z-index:10; cursor:pointer;  opacity:0.8}
.poster-main .poster-prev-btn{left:0; background: url(../images/inverstment/btn_l.png) no-repeat center center;}
.poster-main .poster-next-btn{right:0; background: url(../images/inverstment/btn_r.png) no-repeat center center;}
